How to angle-roll a object on the air with moble input?

https://www.youtube.com/watch?v=T4mxNvTbb30

Hello guys, maybe you have played the game called sky glider 3d published by voodoo. During the game, I wrote my codes for the character to turn right and left after opening its wings, but it does not rotate like in the game. While I was writing C #, I looked at topics like roll, pitch, yaw. What should I do to return the character from mobile input as desired?